--- title: Version 3.40 date: 2026-05-29T12:15:00+02:00 author: Hannes Heckel canonical_url: "https://www.fast-lta.de//en/products/silent-cubes/software/version-3-40" section: Product Updates --- Silent Cubes # Software Version 3.40 Various improvements - **Build:** 3.4.0.4 - **Date:** June 2026 **Classification:** mandatory **Products:** Head Unit H1000 [Documentation ](https://doc.fast-lta.de/de/silent-brick-system/2.67/x-serie-und-g-serie "Manual")[Contact our support team ](https://www.fast-lta.de//en/ticket "Service") ## What's new in this version You can find full instructions on how to update your Silent Cube system here: . **Please take particular note of this when using Active Directory (AD).** For Silent Cubes systems with the **C4**, **H1000** and **H1000 Pro** head units. **Not suitable for Silent Cube Compact or the C2 head unit!** ### Bug Fixes - DEVSC-7**Troubleshooting:** An error that occurred when renaming temporary files has been fixed. ### Improvements - **Statistics page expanded:** New features and improvements have been added to enable advanced analytics. - **Improvements to email error messages:** Meta information has been added to make it easier to identify error messages. --- ## Update 1. Please ensure that your system is running at least version 2.00.29.7750. **If in doubt, please contact technical support.** 2. Download the new version and save the .tar file (do not unzip the file!). 3. Stop all access to the system. 4. Now install the update (fast-update...) via the **Service** section of the user interface and allow the process to run to completion. After approx. 15 minutes, a pop-up window will prompt you to restart the system. Confirm the dialogue. 5. Log in again and check the version. --- ## Download Lesen Sie sich vor dem Start der Installation unbedingt die obigen Hinweise durch. Bei Fragen wenden Sie sich vor der Aktualisierung an unseren Support. [Download ](https://software.fast-lta.com/fast-sc-update-3.4.0.4.tar "Download")MD5: befcd89787337c386152a7b21a7c1732